Receiving a reply to my bug report, it turned out that there was an already rotated version of the image in the folder, but it was hidden. It looks like SIPS failed to replace the old file with the processed version.

So if you encounter this problem, you should open the folder in Terminal and enter “ls -la” to show all the files. Chances are, a version of the file is still there.

]]>By: wolpertingerhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-698488
Sun, 31 Aug 2014 18:04:31 +0000http://osxdaily.com/?p=4101#comment-698488Also, be aware that the command changes both the creation and the modification date of the files being processed.
]]>By: wolpertingerhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-698486
Sun, 31 Aug 2014 17:57:51 +0000http://osxdaily.com/?p=4101#comment-698486Here be Dragons!

I wanted to use this to simply rotate a tiff file by 90 degrees.
After entering the command, I got the following error message (including typo):

Error: Cannot to rename temporary file to NEWFILE.TIF

and the original file was deleted!

This on 10.9.4, SIPS version 10.4.4

I have filed a bug report with Apple

]]>By: Batch Resize Pictures in Mac OS X Using Automatorhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-553878
Wed, 15 May 2013 00:19:45 +0000http://osxdaily.com/?p=4101#comment-553878[…] it still handles batch processing bulk photos just fine. Also, you can tweak and resize images from the command line tool sips, which requires usage of the Terminal and thus may be considered more advanced, but it can be […]
]]>By: nickhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-474709
Sat, 12 Jan 2013 16:24:42 +0000http://osxdaily.com/?p=4101#comment-474709Using this method… is there a way to batch resize images by percentage? ie… resize to 50% of the original size instead of having to specify the resolution.
]]>By: Vinhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-430064
Mon, 24 Sep 2012 14:19:14 +0000http://osxdaily.com/?p=4101#comment-430064Does sips open .eps images? Any alternative from command line to change the resolution of a .eps image? Thanks
]]>By: Jimhttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-323998
Fri, 27 Jan 2012 12:11:55 +0000http://osxdaily.com/?p=4101#comment-323998You could just send the output to /dev/null:

sips -z 600 800 test.jpg > /dev/null

]]>By: stevehttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-175812
Sun, 27 Feb 2011 11:23:29 +0000http://osxdaily.com/?p=4101#comment-175812is there a way to run sips from command line quietly ie no messages?
]]>By: matthttp://osxdaily.com/2010/07/13/immediately-resize-rotate-and-flip-images-via-the-command-line/#comment-111936
Fri, 27 Aug 2010 03:48:16 +0000http://osxdaily.com/?p=4101#comment-111936Hey,
Do you know if there is a way to specify JPEG quality with sips? With the orientation example this shouldn’t matter as it is possible to change the orientation of a JPEG (I think in Exif rather than JFIF JPEGS?) via metadata so the image data is not recompressed, but I am intrigued to know what sips setting is for uncompressed (say TIFF) to JPEG?
I can’t find it in the man page!
]]>